What is playbook

A Playbook in S4E is an orchestrated sequence of actions that executes as a coordinated workflow. Playbooks automate multi-step remediation and response processes, ensuring consistent and repeatable handling of security findings.

From Actions to Playbooks

While an Action is a single remediation step, real-world security response often requires multiple coordinated steps. For example, remediating a critical vulnerability might involve:

  1. Notify the security team via Slack.
  2. Create a Jira ticket assigned to the responsible engineer.
  3. Apply a temporary WAF rule to block exploitation.
  4. Schedule a verification scan after the fix window.
  5. Generate an incident report for compliance.

A Playbook chains these steps together with conditional logic, parallel execution, and approval gates.

CACAO Standard

S4E Playbooks are based on the CACAO (Collaborative Automated Course of Action Operations) standard, an open specification for security orchestration:

  • Interoperability -- CACAO-based playbooks can be shared between organizations and platforms.
  • Standardization -- Common vocabulary and structure for security workflows.
  • Extensibility -- Support for custom step types and integrations.

Note

You do not need deep knowledge of the CACAO specification to use S4E Playbooks. The platform provides a visual builder that abstracts the underlying standard.

Playbook Components

Steps

A playbook consists of ordered steps, each representing a single action or decision point:

  • Action steps -- Execute a specific action (notify, create ticket, run script).
  • Condition steps -- Branch the workflow based on a condition (e.g., if severity is Critical, take path A; otherwise, take path B).
  • Approval steps -- Pause execution until an authorized user approves.
  • Delay steps -- Wait for a specified duration before proceeding.
  • Parallel steps -- Execute multiple steps simultaneously.

Variables

Playbooks use variables to pass data between steps:

  • Input variables -- Data provided when the playbook starts (finding details, asset info).
  • Step output variables -- Data produced by a step (ticket ID, API response).
  • Environment variables -- Organization-wide settings (team names, channel IDs).

Triggers

Playbooks can be started by:

  • Manual trigger -- A user runs the playbook from the UI.
  • Finding trigger -- A new finding matching specific criteria starts the playbook.
  • Schedule trigger -- The playbook runs at a scheduled time.
  • Webhook trigger -- An external system starts the playbook via API.

Built-In Playbooks

S4E includes pre-built playbooks for common scenarios:

Playbook Description
Critical Finding Response Notify team, create ticket, apply WAF rule, schedule re-scan.
Certificate Expiry Alert team, renew certificate, verify renewal, update monitoring.
New Asset Onboarding Verify ownership, tag asset, run initial scan, notify team.
Compliance Scan Run full scan, generate compliance report, email stakeholders.
Incident Escalation Triage finding, escalate if unresolved, create incident report.

Built-in playbooks can be used as-is or cloned and customized.

Playbook vs. Automation Rule

Feature Automation Rule Playbook
Complexity Single action Multi-step workflow
Conditional logic Basic (trigger conditions) Advanced (branching, loops)
Approval gates Per-action only At any step in the workflow
Parallel execution No Yes
Reusability Limited High (templates, cloning)

Use automation rules for simple, single-action responses. Use playbooks for complex, multi-step workflows.

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